Finding the Fourth Proportional to 89,677, 134,423.23 and 39,780.59

Step by Step Solution

1. Step 1: Write the proportion equation
   89,677 : 134,423.23 = 39,780.59 : x
2. Step 2: Convert to fraction form
   89,677/134,423.23 = 39,780.59/x
3. Step 3: Cross multiply
   89,677x = 134,423.23 × 39,780.59
4. Step 4: Simplify right side
   89,677x = 5,347,435,399.11
5. Step 5: Solve for x
   x = 5,347,435,399.11/89,677
6. Step 6: Final answer
   x = 59,629.95